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/* Keep the globe one tap away while reading the book and research. */
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header nav{align-items:center}
header nav a{display:inline-flex;align-items:center;min-height:44px}
header nav a:last-child{padding:10px 16px;border:1px solid #68867a;border-radius:5px;background:#17332f;color:#d2e9dc;white-space:nowrap}
header nav a:last-child:hover{background:#24473f}
section[id],article[id],main[id]{scroll-margin-top:120px}
@media(max-width:600px){header{gap:10px;padding-block:14px}header nav a:last-child{padding:9px 12px}.hero{padding-top:38px}h1{font-size:clamp(48px,12vw,62px)}section[id],article[id],main[id]{scroll-margin-top:145px}}
/* Chapter titles and explicit reading links open the illustrated book. */
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@media(max-width:700px){.research .library-map-grid{grid-template-columns:1fr;gap:22px}.research .library-map-copy{padding:22px}.research .library-return{display:block}.research .library-return>span{display:block;margin-top:12px}}
.chapter-list h3 a{font:inherit;color:var(--ink);line-height:inherit;text-decoration:none}
.chapter-list h3 a:hover{color:var(--accent);text-decoration:underline}
.chapter-links{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.chapter-list .read-chapter{border:1px solid #526e61;border-radius:4px;padding:10px 14px;color:#d1e8da;font-size:13px;min-height:42px;background:#18302e}
.chapter-list .read-chapter:hover{background:#25443b}
@media(max-width:850px){.chapter-list li>.chapter-links{grid-column:2;flex-direction:row;flex-wrap:wrap;align-items:center;gap:16px}.chapter-list h3 a{font:inherit}}

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